This is example of a spinning glyph. The hue controls the spin and the saturation and lightness control the two different halves. A small dot was added as a refrence point to reduce the visual symmetry.
https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.7.3/p5.js
https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.7.3/addons/p5.dom.js